期刊
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
卷 22, 期 12, 页码 2322-2329出版社
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532011001200012
关键词
zinc hydroxide salts; palladium nanoparticles; Heck reactions; Suzuki reactions; hexachloropalladate
资金
- Universidad de Caldas
- Vicerrectoria de Investigaciones y Postgrados
- Universidad Nacional de Colombia (Manizales)
- Direccion de Investigaciones sede Manizales DIMA
Palladium nanoparticles supported on zinc hydroxide salts were prepared by intercalation of [PdCl6](2-) and its further reduction with ethanol under reflux. All the materials were completely characterized by atomic absorption spectroscopy (AAS), X-ray diffraction (XRD), thermogravimetric/derivative thermogravimetric (TG/DTG) analyses, scanning electron microscopy (SEM), UV-Visible spectrometry and transmission electron microscopy (TEM). TEM analysis confirmed that the palladium nanoparticles were properly supported. The material containing supported palladium nanoparticles was used to promote Heck and Suzuki coupling reactions starting from aryl halides, with isolated yields of 98, 75 and 62% of biphenyl, cinnamic acid and 3-nitrobiphenyl, respectively.
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